20797881

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{2707}}^1$

素因数の和:2920

約数の個数: 16

約数和(自身を含む): 30026304

約数和(自身を除く): 9228423

約数列:

[1, 3, 13, 39, 197, 591, 2561, 2707, 7683, 8121, 35191, 105573, 533279, 1599837, 6932627, 20797881]

約数ペア:

[(1, 20797881), (3, 6932627), (13, 1599837), (39, 533279), (197, 105573), (591, 35191), (2561, 8121), (2707, 7683)]